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1 | #ifndef ALIPHOSPIDV1_H |
2 | #define ALIPHOSPIDV1_H |
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3 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * |
4 | * See cxx source for full Copyright notice */ |
5 | |
6 | /* $Id$ */ |
7 | |
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8 | |
9 | //_________________________________________________________________________ |
10 | // Implementation version v1 of the PHOS particle identifier |
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11 | // Identification is based on information from CPV and EMC |
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12 | // Oh yeah |
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13 | //*-- Author: Yves Schutz (SUBATECH), Gustavo Conesa. |
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14 | |
15 | // --- ROOT system --- |
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16 | class TVector3 ; |
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17 | class TMatrix ; |
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18 | class TPrincipal ; |
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19 | class TROOT ; |
20 | class TTree ; |
21 | class TCanvas ; |
22 | class TFolder ; |
23 | class TMatrixD ; |
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24 | class TFormula; |
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25 | // --- Standard library --- |
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26 | // --- AliRoot header files --- |
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27 | class AliPHOSEmcRecPoint ; |
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28 | class AliPHOSCpvRecPoint ; |
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29 | class AliPHOSClusterizerv1 ; |
30 | class AliPHOSTrackSegmentMakerv1 ; |
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31 | |
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32 | #include "AliPHOSPID.h" |
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33 | #include "AliESDtrack.h" |
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34 | class AliPHOSPIDv1 : public AliPHOSPID { |
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35 | |
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36 | public: |
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37 | |
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38 | AliPHOSPIDv1() ; // ctor |
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39 | AliPHOSPIDv1(const TString alirunFileNameFile, const TString eventFolderName = AliConfig::GetDefaultEventFolderName()) ; |
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40 | AliPHOSPIDv1(const AliPHOSPIDv1 & pid) ; // cpy ctor |
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41 | |
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42 | virtual ~AliPHOSPIDv1() ; // dtor |
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43 | |
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44 | virtual void Exec(Option_t *option); // Does the job |
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45 | |
46 | //Get file name that contain the PCA |
47 | const TString GetFileNamePrincipal(TString particle) const; |
48 | |
49 | //Get file name that contain PID parameters |
50 | const TString GetFileNameParameters() const {return fFileNameParameters ;} |
51 | |
52 | // Get number of rec.particles in this run |
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53 | virtual Int_t GetRecParticlesInRun() const {return fRecParticlesInRun ;} |
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54 | |
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55 | |
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56 | // Get PID parameters as they are defined in fParameters |
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57 | Float_t GetParameterCalibration (Int_t i) const; |
58 | Float_t GetParameterCpv2Emc (Int_t i, TString axis) const; |
59 | Float_t GetParameterTimeGate (Int_t i) const; |
60 | Float_t GetParameterToCalculateEllipse(TString particle, TString param, Int_t i) const ; |
61 | Float_t GetParameterPhotonBoundary (Int_t i) const; |
62 | Float_t GetParameterPi0Boundary (Int_t i) const; |
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63 | |
64 | // Get energy-dependent PID parameters |
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65 | Float_t GetCalibratedEnergy (Float_t e) const; |
66 | Float_t GetCpv2EmcDistanceCut (TString axis, Float_t e) const ; |
67 | Float_t GetEllipseParameter (TString particle, TString param, Float_t e) const; |
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68 | |
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69 | //Do bayesian PID |
70 | void SetBayesianPID(Bool_t set){ fBayesian = set ;} |
71 | |
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72 | // Set PID parameters to change appropriate element of fParameters |
73 | void SetParameterCalibration (Int_t i, Float_t param); |
74 | void SetParameterCpv2Emc (Int_t i, TString axis, Float_t cut) ; |
75 | void SetParameterTimeGate (Int_t i, Float_t gate) ; |
76 | void SetParameterToCalculateEllipse(TString particle, TString param, Int_t i, Float_t value) ; |
77 | void SetParameterPhotonBoundary(Int_t i, Float_t param); |
78 | void SetParameterPi0Boundary (Int_t i, Float_t param); |
79 | |
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80 | //Switch to "on flyght" mode, without writing to TreeR and file |
81 | void SetWriting(const Bool_t toWrite = kFALSE){fWrite = toWrite;} |
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82 | void Print() const ; |
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83 | |
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84 | virtual const char * Version() const { return "pid-v1" ; } |
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85 | |
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86 | AliPHOSPIDv1 & operator = (const AliPHOSPIDv1 & /*pid*/) { return *this ;} |
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87 | |
88 | private: |
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89 | |
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90 | const TString BranchName() const ; |
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91 | virtual void Init() ; |
92 | virtual void InitParameters() ; |
93 | void MakeRecParticles(void ) ; |
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94 | void MakePID(void) ; |
95 | |
96 | //Functions to calculate the PID probability |
97 | // Double_t ChargedHadronDistProb(Double_t x, Double_t y, Double_t * parg, Double_t * parl) ; |
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98 | const Double_t GausF (Double_t x, Double_t y, Double_t *par) ; //gaussian probability, parameter dependence a+b/(x*x)+c/x |
99 | const Double_t GausPol2(Double_t x, Double_t y, Double_t *par) ; //gaussian probability, parameter dependence a+b*x+c*x*x |
100 | const Double_t LandauF(Double_t x, Double_t y, Double_t *par) ; //gaussian probability, parameter dependence a+b/(x*x)+c/x |
101 | const Double_t LandauPol2(Double_t x, Double_t y, Double_t *par) ; //gaussian probability, parameter dependence a+b*x+c*x*x |
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102 | // Relative Distance CPV-EMC |
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103 | Float_t GetDistance (AliPHOSEmcRecPoint * emc, AliPHOSCpvRecPoint * cpv, Option_t * axis)const ; |
104 | Int_t GetCPVBit (AliPHOSEmcRecPoint * emc, AliPHOSCpvRecPoint * cpv, Int_t EffPur, Float_t e) const; |
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105 | Int_t GetPrincipalBit (TString particle, const Double_t* P, Int_t EffPur, Float_t e)const ; //Principal cut |
106 | Int_t GetHardPhotonBit(AliPHOSEmcRecPoint * emc) const; |
107 | Int_t GetHardPi0Bit (AliPHOSEmcRecPoint * emc) const; |
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108 | TVector3 GetMomentumDirection(AliPHOSEmcRecPoint * emc, AliPHOSCpvRecPoint * cpv)const ; |
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109 | void PrintRecParticles(Option_t * option) ; |
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110 | virtual void WriteRecParticles() ; |
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111 | void SetParameters() ; //Fills the matrix of parameters |
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112 | void Unload(); |
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113 | |
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114 | //PID population |
115 | void SetInitPID(const Double_t * pid) ; |
116 | void GetInitPID(Double_t * pid) const ; |
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117 | |
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118 | private: |
119 | Bool_t fBayesian ; // Do PID bayesian |
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120 | Bool_t fDefaultInit; //! kTRUE if the task was created by defaut ctor (only parameters are initialized) |
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121 | Bool_t fWrite ; //! To write result to file |
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122 | Int_t fNEvent ; //! current event number |
123 | TString fFileNamePrincipalPhoton ; // File name of the photon principals |
124 | TString fFileNamePrincipalPi0 ; // File name of the pi0 principals |
125 | TString fFileNameParameters ; // File name with PID parameters |
126 | TPrincipal *fPrincipalPhoton ; //! TPrincipal from photon pca file |
127 | TPrincipal *fPrincipalPi0 ; //! TPrincipal from pi0 pca file |
128 | Double_t *fX ; //! Shower shape for the principal data |
129 | Double_t *fPPhoton ; //! Principal photon eigenvalues |
130 | Double_t *fPPi0 ; //! Principal pi0 eigenvalues |
131 | Int_t fRecParticlesInRun ; //! Total number of recparticles in one run |
132 | TMatrix *fParameters; //! Matrix of identification Parameters |
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133 | |
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134 | //Initial pid population |
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135 | Double_t fInitPID[AliESDtrack::kSPECIESN] ; // Initial population to do bayesian PID |
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136 | // pid probability function parameters |
137 | // ToF |
138 | Double_t fTphoton[3] ; // gaussian tof response for photon |
139 | TFormula * fTFphoton ; // the formula |
140 | /* Double_t fTelectron[3] ; // gaussian tof response for electrons */ |
141 | /* TFormula * fTFelectron ; // the formula */ |
142 | /* Double_t fTmuon[3] ; // gaussian tof response for muon */ |
143 | /* TFormula * fTFmuon ; // the formula */ |
144 | Double_t fTpiong[3] ; // gaussian tof response for pions |
145 | TFormula * fTFpiong ; // the formula |
146 | /* Double_t fTpionl[3] ; // gaussian tof response for pions */ |
147 | /* TFormula * fTFpionl ; // the formula */ |
148 | Double_t fTkaong[3] ; // landau tof response for kaons |
149 | TFormula * fTFkaong ; // the formula |
150 | Double_t fTkaonl[3] ; // landau tof response for kaons |
151 | TFormula * fTFkaonl ; // the formula |
152 | Double_t fThhadrong[3] ; // gaus tof response for heavy hadrons |
153 | TFormula * fTFhhadrong ; // the formula |
154 | Double_t fThhadronl[3] ; // landau tof response for heavy hadrons |
155 | TFormula * fTFhhadronl ; // the formula |
156 | /* Double_t fTpion[9] ; // gaussian tof response for pions */ |
157 | /* Double_t fTkaon[9] ; // landau tof response for kaons */ |
158 | /* Double_t fThhadron[9] ; // landau tof response for nucleons */ |
159 | |
160 | //Shower dispersion |
161 | Double_t fDmuon[3] ; // gaussian ss response for muon |
162 | TFormula * fDFmuon ; // the formula |
163 | Double_t fDphoton[9] ; // gaussian ss response for EM |
164 | Double_t fDpi0[9] ; // gaussian ss response for pi0 |
165 | Double_t fDhadron[9] ; // gaussian ss response for hadrons |
166 | |
167 | // gaussian ss response for muons |
168 | //CPV-EMCAL distance |
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169 | /* Double_t fCPVelectron[9] ; // gaussian emc-cpv distance response for electron */ |
170 | /* Double_t fCPVcharged[9] ; // landau emc-cpv distance response for charged part (no elect) */ |
171 | Double_t fXelectron[9] ; // gaussian emc-cpv distance response for electron |
172 | Double_t fXcharged[9] ; // landau emc-cpv distance response for charged part (no elect) */ |
173 | Double_t fZelectron[9] ; // gaussian emc-cpv distance response for electron |
174 | Double_t fZcharged[9] ; // landau emc-cpv distance response for charged part (no elect) */ |
175 | |
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176 | /* Double_t fCPVchargedg[9] ; // gaussian emc-cpv distance response for charged part (no elect) */ |
177 | /* Double_t fCPVchargedl[9] ; // landau emc-cpv distance response for charged part (no elect) */ |
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178 | |
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179 | ClassDef( AliPHOSPIDv1,11) // Particle identifier implementation version 1 |
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180 | |
181 | }; |
182 | |
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183 | #endif // AliPHOSPIDV1_H |